var http = require('http');
var url = 'http://www.imooc.com/learn/348';

http.get(url , function(res){

	var html = '';
	res.on('data', function(data){
		html += data;
	});
	res.on('end',function(){
		console.log(html);
	});
}).on('error',function(){

	console.log("获取课程数据错误");


});